The "rules" in blind picks

So everybody knows the "rules" of blind pick, you wrote first the lane you get the lane, but many times someone disrespects it, instalocks for a role or just goes where he/she wants without telling anyone or just types "[insert lane people usually fight for]" and if someone already wrote that the person responds with "idc (I don't care)". Now while this is really annoying because even if there was no "rule", who the person thinks he/she is, going on without caring about others choices and what they want. Now my question is, this is existent of course, but how do people and Riot looks at this "rule" and those who disrespects it and picking champs and such without reconciliation? *Note: blind pick only, I know there is a Draft mode, I'm not starting this discussion because this really bothers me*
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